Remember the trapezoid from 10th-grade geometry? Turns out, this funky ol’ shape is ideal for helping sleeping bag baffles retain heat. The trapezoidal baffle construction improves on our best-selling Cosmic sleeping bag—and it’s just one of the reasons the Kelty Cosmic Down 0 is still our favorite three-season superstar. We also love the natural-fit foot box for happier feet, and a PFC-free water-repellent coating for a healthier environment.

• Innovative trapezoidal baffle construction = thermal efficiency
• Lightweight and warm 550 fill down
• Environmental and health friendly C0 and PFC-free DWR fabrics
• Zippered internal stash pocket for headlamp, cell phone or actual… stash
• Buttery-soft and durable 20D Nylon shell fabric
• Zipper draft tube with anti-snag zipper design makes it easy to get in and out
• Dual slider for ventilation with locking zippers
• Natural fit spacious footbox = more room to wiggle your toes
• Comes with stuff sack for quick departures

Long

• Fits to: 6' 6" / 198 cm
• Weight: 4.63 lb. / 2.1 kg
• Fill weight: 41.55 oz. / 1178 g
• Stuff Sack Size: 10" x 19" / 25 x 48 cm
• Length: 84 in / 213 cm
• Shoulder Circumference: 64 in / 163 cm
• Hip Circumference: 60 in / 152 cm
• Foot Circumference: 42 in / 107 cm